@LontzroV you’ll need to check how to create a management VLAN for your switches. The issue is that the VLAN 5 interface on the switches doesn’t have a default gateway/route. Anything which has an interface on VLAN 5, so the MX, the switches themselves, or a host on that VLAN will be able to ping the switches. However, anything remote to VLAN 5 won’t get a response since when the switch tries to respond the VLAN 5 interface has no idea of where to send the response if it’s not in VLAN 5, and it can’t send it to the Default Gateway as that’s in VLAN 1. There will either be a specific way to create a management interface on the switches, which will likely mean there is a limit of one interface (so you’ll need to remove the VLAN 1 interface so you can change the default gateway). Or, as in the Cisco Catalyst world, you will need to create a management VRF so you can have a separate routing table for VLAN 5 - this is addresses the fundamental problem you have of needing to routing tables (one for each VLAN). If all the routing is being performed on the MX then you only need one interface on the switches for management, and if VLAN 5 is to be your management network then it should just be VLAN 5.
... View more